Cross-calibration of SMBH masses using X-SHOOTER spectroscopy

Abstract

We perform multi-wavelength analyses of nearby Seyfert galaxies, which are observed as a part of Local Luminous AGN with Matched Analogues (LLAMA) project. The analyses include UV and optical VLT/X-SHOOTER spectral data of X-ray selected most luminous local Seyfert 1 galaxies. In this study, we aim to obtain SMBH masses by using H$_{\alpha}$ scaling relations and compare our results with M-sigma plane. FWHM results of H$_{\alpha}$ of our sample galaxies are found to be in a wide range (1450 $<$ FWHMH$_{\alpha}$ $<$ 6400 km s-1), which results in a range of black hole masses: 6.3 $<$ log MBH $<$ 7.6 M$_{\odot}$. Resulting BH masses are compared with stellar dispersions, which is measured from CA-Triplet emission line. In our preliminary results, we conclude that the majority of our Seyfert 1 galaxies host disk-like bulges, namely pseudo-bulges.

Keywords

• galaxies
• active
• Samanyolu
• Galaksiler
• Kozmoloji

References

1. TJAA cilt 1, sayı 2, s.667–667 (2020) Ulusal Astronomi Kongresi: UAK 2018 – 3 - 7 Eyl ̈ul 2018, Kayseri, Erciyes Universitesi